:root {
    --bg-primary: #0f172a;
    --bg-card: #1e293b;
    --bg-sidebar: #1e293b;
    --border: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --green: #22c55e;
    --yellow: #eab308;
    --red: #ef4444;
    --blue: #3b82f6;
    --cyan: #06b6d4;
    --sidebar-width: 220px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
}

/* ── Sidebar ── */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    padding: 20px 0;
    z-index: 100;
    display: flex;
    flex-direction: column;
}

.sidebar-logo {
    padding: 0 20px 20px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 10px;
}

.sidebar-logo h2 {
    font-size: 16px;
    font-weight: 700;
    color: var(--blue);
    letter-spacing: -0.5px;
}

.sidebar-logo small {
    font-size: 11px;
    color: var(--text-muted);
}

.sidebar nav { flex: 1; }

.sidebar nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.15s;
    border-left: 3px solid transparent;
}

.sidebar nav a:hover {
    background: rgba(59, 130, 246, 0.08);
    color: var(--text-primary);
}

.sidebar nav a.active {
    color: var(--blue);
    background: rgba(59, 130, 246, 0.1);
    border-left-color: var(--blue);
}

.sidebar nav a .icon {
    width: 18px;
    text-align: center;
    font-size: 14px;
}

.sidebar-footer {
    padding: 15px 20px;
    border-top: 1px solid var(--border);
    font-size: 11px;
    color: var(--text-muted);
}

.sidebar-footer a {
    color: var(--text-muted);
    text-decoration: none;
}

.sidebar-footer a:hover { color: var(--red); }

/* ── Main Content ── */
.main {
    margin-left: var(--sidebar-width);
    padding: 24px 32px;
    min-height: 100vh;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.page-header h1 {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.page-header .refresh-info {
    font-size: 11px;
    color: var(--text-muted);
}

/* ── KPI Cards ── */
.kpi-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.kpi-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 20px;
}

.kpi-card .label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.kpi-card .value {
    font-size: 32px;
    font-weight: 800;
    line-height: 1;
}

.kpi-card .sub {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 6px;
}

.kpi-card.green .value { color: var(--green); }
.kpi-card.yellow .value { color: var(--yellow); }
.kpi-card.red .value { color: var(--red); }
.kpi-card.blue .value { color: var(--blue); }
.kpi-card.cyan .value { color: var(--cyan); }

/* ── Cards Grid ── */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 20px;
}

.card-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

/* ── Tables ── */
.table-container {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 24px;
    overflow-x: auto;
}

table.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

table.data-table th {
    text-align: left;
    padding: 10px 12px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    white-space: nowrap;
}

table.data-table td {
    padding: 10px 12px;
    border-bottom: 1px solid rgba(51, 65, 85, 0.5);
    color: var(--text-secondary);
}

table.data-table tr:hover td {
    background: rgba(59, 130, 246, 0.04);
}

table.data-table tr:last-child td {
    border-bottom: none;
}

.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
}

.badge-green { background: rgba(34,197,94,0.15); color: var(--green); }
.badge-yellow { background: rgba(234,179,8,0.15); color: var(--yellow); }
.badge-red { background: rgba(239,68,68,0.15); color: var(--red); }
.badge-blue { background: rgba(59,130,246,0.15); color: var(--blue); }

/* ── Phase blocks (overview) ── */
.phase-block {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 20px;
}

.phase-block .phase-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.phase-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid rgba(51, 65, 85, 0.3);
    font-size: 13px;
    cursor: pointer;
    transition: background 0.15s;
}

.phase-item:hover {
    background: rgba(59, 130, 246, 0.04);
    margin: 0 -8px;
    padding: 8px;
    border-radius: 4px;
}

.phase-item:last-child { border-bottom: none; }

.phase-item .name { color: var(--text-secondary); }
.phase-item .count {
    font-weight: 700;
    font-size: 14px;
    min-width: 32px;
    text-align: right;
}

/* ── Chart container ── */
.chart-container {
    position: relative;
    height: 300px;
}

/* ── Filter bar ── */
.filter-bar {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.filter-bar select,
.filter-bar input {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 8px 12px;
    color: var(--text-primary);
    font-size: 13px;
}

.filter-bar select:focus,
.filter-bar input:focus {
    outline: none;
    border-color: var(--blue);
}

/* ── Loading ── */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    color: var(--text-muted);
    font-size: 13px;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-top-color: var(--blue);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-right: 10px;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── Login ── */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--bg-primary);
}

.login-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 40px;
    width: 360px;
}

.login-box h1 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--blue);
}

.login-box p {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 24px;
}

.login-box .form-group {
    margin-bottom: 16px;
}

.login-box label {
    display: block;
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 6px;
    font-weight: 500;
}

.login-box input {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 14px;
}

.login-box input:focus {
    outline: none;
    border-color: var(--blue);
}

.login-box button {
    width: 100%;
    padding: 10px;
    background: var(--blue);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    margin-top: 8px;
    transition: opacity 0.15s;
}

.login-box button:hover { opacity: 0.9; }

.flash-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--red);
    padding: 10px;
    border-radius: 6px;
    font-size: 13px;
    margin-bottom: 16px;
}

/* ── Tabs ── */
.tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0;
}

.tab-btn {
    padding: 8px 16px;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
}

.tab-btn:hover { color: var(--text-primary); }
.tab-btn.active {
    color: var(--blue);
    border-bottom-color: var(--blue);
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .sidebar { display: none; }
    .main { margin-left: 0; padding: 16px; }
    .kpi-row { grid-template-columns: repeat(2, 1fr); }
    .cards-grid { grid-template-columns: 1fr; }
}